torrential rains and high wind also ripped through tennessee knocking down trees and power lines. one man was killed there when a tree crashed on top of a shed. >>> in the midwest, after a brief warm-up, old man winter made his return. snow fell in iowa, nebraska, wisconsin and michigan. some places got up to several inches. a big change from earlier in the week when temperatures were in the 60s. kind of like we've been having here. >>> developing in alabama where a 6-year-old boy is still being held hostage. >> it has been nearly two days since the man reportedly boarded the boy's school bus, shot and killed the driver and kidnapped the boy. the two are now locked up in a bunker. we have a report. >> reporter: a gunman, still inside an underground bunker at his home with a 6-year-old hostage but law enforcement officers say the little boy is believed to be safe. >> i can assure you that the negotiators continue to communicate with the suspect. at this time, we have no reason to believe that the child has been harmed. >> reporter: the standoff began after the man shot and killed a